Send session history offset and length parameters in the Navigate message to...

chrome/browser/session_history_uitest.cc

Index: chrome/browser/session_history_uitest.cc
===================================================================
--- chrome/browser/session_history_uitest.cc	(revision 41858)
+++ chrome/browser/session_history_uitest.cc	(working copy)
@@ -23,6 +23,7 @@
 class SessionHistoryTest : public UITest {
  protected:
   SessionHistoryTest() : UITest() {
+    dom_automation_enabled_ = true;
   }
 
   virtual void SetUp() {
@@ -515,4 +516,40 @@
   EXPECT_EQ(L"Default Title", GetTabTitle());
 }
 
+TEST_F(SessionHistoryTest, HistoryLength) {
+  scoped_refptr<HTTPTestServer> server =
+      HTTPTestServer::CreateServer(kDocRoot, NULL);
+  ASSERT_TRUE(server.get());
+
+  int length;
+  ASSERT_TRUE(tab_->ExecuteAndExtractInt(
+      L"", L"domAutomationController.send(history.length)", &length));
+  EXPECT_EQ(1, length);
+
+  ASSERT_TRUE(tab_->NavigateToURL(server->TestServerPage("files/title1.html")));
+
+  ASSERT_TRUE(tab_->ExecuteAndExtractInt(
+      L"", L"domAutomationController.send(history.length)", &length));
+  EXPECT_EQ(2, length);
+
+  // Now test that history.length is updated when the navigation is committed.
+  ASSERT_TRUE(tab_->NavigateToURL(server->TestServerPage(
+      "files/session_history/record_length.html")));
+  ASSERT_TRUE(tab_->ExecuteAndExtractInt(
+      L"", L"domAutomationController.send(history.length)", &length));
+  EXPECT_EQ(3, length);
+  ASSERT_TRUE(tab_->ExecuteAndExtractInt(
+      L"", L"domAutomationController.send(history_length)", &length));
+  EXPECT_EQ(3, length);
+
+  ASSERT_TRUE(tab_->GoBack());
+  ASSERT_TRUE(tab_->GoBack());
+
+  // Ensure history.length is properly truncated.
+  ASSERT_TRUE(tab_->NavigateToURL(server->TestServerPage("files/title2.html")));
+  ASSERT_TRUE(tab_->ExecuteAndExtractInt(
+      L"", L"domAutomationController.send(history.length)", &length));
+  EXPECT_EQ(2, length);
+}
+
 }  // namespace